Rex Energy Corp. (NasdaqGS: REXX) detailed its initial 2014 capex budget Jan. 15. On the same day, Rex also detailed production results for fourth quarter 2013 and the full year, as well as operational updates, the company said. 2014’s capex has between $350 -$365 million. Production results for both the fourth quarter 2013 and the entire year “exceeded the midpoint” of earlier guidance, the company said.Much of the 2014 capex budget goes to exploration and development. The company’s operations in the Appalachia Basin-Butler get $175-$185 million. Operations in Appalachia Basin-Ohio...